Compaq 320, 321, 420, 421, 620 and 621 Notebook PC and HP 420 and 620 Notebook PC

3.
Remove the memory module (2) by pulling the module away from the slot at an angle.
NOTE: Memory modules are designed with a notch to prevent incorrect insertion into the
memory module slot.
Reverse this procedure to install a memory module.
Component replacement procedures
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